Software

The most useful Firefox extension for Google is Customize Google. It lets you remove websites from Google Search results, search other places from Google, disables click tracking if you have privacy concerns and much more.

WorldWide Telescope is an observatory on your desktop, allowing you to see the sky in a way you have never seen before; individual exploration, multi-wavelength views, stars and planets within context to each other.

You can turn any USB Flash drive or an iPod into a personal computer with all your software programs, application settings and data. It is more secure and private that using a public terminal because no traces are left once you pop out the pen drive.

While Instapaper and Clipmarks let you save web clippings from the browser, ShifD is available for mobile phones and also provides a desktop client so you can take notes from virtually any Windows or Mac software.

A study indicates that decreasing this default print margin width in Word from 1.25 inches to 0.75 inch would result in average paper savings of 4.75 percent. And you just don't save on paper but also trees and money.